纳米铝/金对纳米二,五-二苯基噁唑薄膜荧光特性的调制

以直流溅射方法和真空蒸镀方法结合制备了单组份纳米铝薄膜、纳米金薄膜、纳米二,五-二苯基噁唑(DPO)薄膜和双组份纳米Al/DPO、Au/DPO复合叠层薄膜。利用双势垒伏安特性曲线模拟计算、荧光分光光度计和扫描电子显微镜(SEM)表征了薄膜样品的电学性质、荧光性质和表面形貌。固态荧光光谱观察到500nm膜厚的Au/DPO、Al/DPO叠层结构复合纳米薄膜样品的荧光主峰发生了明显红移。Au/DPO叠层结构复合薄膜样品与单组份DPO纳米薄膜样品的荧光发射光谱相比较,叠层薄膜内相互作用较弱,而Al/DPO叠层结构复合纳米薄膜样品相互作用较强、谱线峰型变化较大,Al的谱线的半高全宽明显增大,推测颗粒内部存在离散的能级结构。

Modulation of Fluorescence Property of Nanometer Aluminum / Gold for 2,5-Diphenyloxazole

Nano-aluminum films, nano gold films, nano 2,5-Diphenyloxazole (DPO) thin films and two-component nano-Al / DPO, Au / DPO composite laminated films were fabricated by DC sputtering method and vacuum deposition method. The electrochemical properties, fluorescence properties and surface morphology of the films were characterized by four-point probe resistance tester, fluorescence spectrophotometer and scanning electron microscopy (SEM) respectively. On the solid photoluminescence spectra of the Au / DPO, Al / DPO laminated composite film (500nm thickness), a significant red shift of the wavelength peak occurred. The interaction within Au / DPO laminated composite films was weaker than in the single-component DPO nanofilm samples, while the Al / DPO laminated composite nano films have strong interaction, and the figure of the spectral line altered tremendously. The full width at half maximum (FWHW) of Al is significantly increased. It is presumed that there is a discrete energy level structure in the particles.